8 foot long cord gives you some extra room to charge your pump in your vehiclenReplaceable 1.5 amp fusenAdaptor may not work with all vehicle lighter outlets refer to your vehicle owners manual to check compatibility with your vehicle lighternIdeal for moms on the go, the 12v vehicle lighter adaptor keeps your breast pump fully charged when you are out and about. A convenient alternative power option for freestyle, pump in style advanced breast pumps (manufactured prior to January 2008), and lactina breast pumps. Not for use with the symphony, single deluxe, or 9v pump in style breast pumps. Authentic Medela spare parts are engineered, tested and approved to work specifically with your Medela breast pump. Non Medela spare parts can vary significantly in design, materials, and workmanship; all of which may affect the performance of your Medela breast pump.